04.08.2010 rlt980_250gs.doc 1 of 2 RLT980-250GS technical data high power infrared laser diode lasing mode structure: single mode lasing wavelength: typ. 980 nm max. optical power: 250 mw package: 9 mm (sot-148) pin connection: 1) laserdiode anode 2) laserdiode cathode and photodiode cathode 3) photodiode anode optical-electrical characteristics (tc = 25c) characteristic symbol min typ max unit lasing wavelength p 975 980 985 nm spectrum fwhm f - 0.5 2 nm optical output power p o - 250 - mw kink-free power p k - 275 - mw threshold current i th - 30 80 ma operation current i op - 310 395 ma operation voltage v op - 1.7 2.0 v beam divergence // - 8 10 beam divergence - 30 35 lifetime t 100,000 - - hour slope efficiency 0.8 0.9 - w/a
04.08.2010 rlt980_250gs.doc 2 of 2 absolute maximum ratings (tc = 25c) characteristic symbol rating unit operating temperature t op -20 .. +50 c storage temperature t stg -40 .. +80 c lead soldering temperatur (<5sec) t sol +250 c safety caution: laser light emitted from any diode laser is invisible and may be harmful to human eye. avoid looking directly into the diode laser aperature when the device is in operation. note: the use of optical instruments with this product will increase eye hazard. esd caution always handle diode lasers with extreme care to prevent electrostatic discharge, the primary cause of unexpected diode failure. y ou can prevent esd by always wearing wrist straps, grounding all applicable work su rfaces, and following extremely rigorous anti- static. operating considerations operating the diode laser outsi de of its maximum ratings my cause device failure or a safety hazard. power supplies used with the component must be employ ed such that the maximum peak optical power cannot be exc eeded. cw diode lasers may be damaged by excessive drive current or switching transients. when using power supplies, the diode laser should be connected with the main pow er on and the output voltage at zero. the current shuould be increased slowly while m onitoring the diode laser output power and the driver current. device degradation a ccelerates with increased tempereature, and therefore careful attention to minimize the case temperature is advised. a proper heat sink for the diode laser on a thermal radiator will greatly enhance laser life.
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